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Harm and protection of abno…
Gate valves usually have single gate, double gate, wedge, parallel and other structur…
2024-11-08
Valve sealing surface grind…
The sealing performance of the valve directly affects the control effect of the fluid m…
2024-11-01
Valve sealing surface mater…
Sealing surface is the most critical working face of the valve, the quality of the se…
2024-10-25-
07-12 2024What defects are prone to valve castings?2024-07-121. StomataThis is a small cavity formed in the metal by the gas that fails to escape during the solidification process, its inner wall is smooth,>
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06-28 2024Valve common problems "High pressure drop"2024-06-28Due to the difference in upstream and downstream pressure,>
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06-21 2024Gate valve leakage cause analysis and treatment measures2024-06-21>
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04-05 202410 problems often encountered in the use of valves2024-04-0501 Why is the two-seat valve easy to oscillate when working with small opening?For a single core, when the medium is flow open, the valve stability is good; When the medium is flow closed type, the stability of the valve is poor. The double-seat valve has two spool, t…>
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03-29 2024Commonly used material heat treatment process of valve body2024-03-29Valve body blank heat treatment process according to different materials are as follows:1. Heat treatment of gray cast iron>
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03-15 2024Causes and treatment of internal leakage of natural gas ball valve2024-03-15Causes of ball valve internal leakage1. Reasons for internal leakage of the valve during the construction period:① Improper transportation and hoisting causes the overall damage of the valve, resulting in internal leakage of the valve;>
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12-01 2023Shengli Gudong Oil extraction plant takes many measures to reduce the nat…2023-12-01>
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